IBM announced a major technological breakthrough at its annual Quantum Developers Conference earlier today, setting the goal of achieving "Quantum Advantage" by the end of 2026 and planning to launch it in 2029.Quantum computers with fault-tolerance capabilities .
Jay Gambetta, Director of IBM Research and an IBM Fellow, emphasized that the widespread adoption of quantum technology requires concerted efforts from multiple parties. He pointed out, "IBM is the only company capable of rapidly innovating and simultaneously developing quantum software, hardware, manufacturing, and error correction technologies to realize practical applications of quantum mechanics."
2026 Quantum Advantage Key: IBM Quantum Nighthawk
To achieve its goal of quantum advantage by 2026 (i.e., quantum computers can solve problems in a way that is superior to all conventional computing technologies), IBM has launched its most advanced quantum processor to date – codenamed "Nighthawk".
The IBM Quantum Nighthawk, expected to launch at the end of 2025, possesses the following core capabilities:
• 120 qubits:Employing 218 next-generation tunable couplers, it connects the four nearest qubits to form a square lattice, increasing the number of couplers by more than 20% compared to the IBM Quantum Heron.
• Improve connectivity:Increased qubit connectivity allows users to execute circuits with 30% increased complexity while maintaining a low error rate.
• Supports 5000 dual-qubit gates:This architecture supports up to 5000 two-qubit gates, which is crucial for the entanglement process in quantum computing and is suitable for high-computational-power-demanding topics.
IBM anticipates that the first community-validated cases of quantum advantage will be announced by the end of 2026. To this end, IBM has announced collaborations with partners such as Algorithmiq, Flatiron Institute, and BlueQubit, with the aim of contributing innovative results to open, community-led mechanisms for validation.
Towards Fault-Tolerant Computing in 2029: The Experimental Processor Loon Makes its Debut
In line with the longer-term goal of a fault-tolerant quantum computer by 2029, IBM simultaneously launched an experimental processor codenamed "Loon".
IBM stated that Loon is the first demonstration that IBM possesses the key components needed to develop fault-tolerant quantum computing. Its innovation lies in the introduction of multiple high-quality, low-loss routing layers, enabling "long-distance on-chip connections" (c-couplers) that go beyond nearest-neighbor couplers, allowing for the physical connection of distant qubits on the same chip.
In addition, IBM demonstrated another key breakthrough: using traditional computing hardware, it accurately performed real-time error decoding of qLDPC code at a speed of less than 480nm. This engineering achievement was completed a year ahead of schedule, laying the foundation for extending qLDPC code on superconducting qubits.
The New York State factory will mass-produce 300mm quantum wafers.
In addition to breakthroughs in chip design, IBM also announced that its factory in Albany Nanotechnology Park, New York, will become the main manufacturer of its 300mm quantum wafers, accelerating the development and mass production of quantum chips.
